diff --git a/mobile/source/helpers/dalianpay/library/Crypt.php b/mobile/source/helpers/dalianpay/library/Crypt.php
index 0331164..d5904af 100644
--- a/mobile/source/helpers/dalianpay/library/Crypt.php
+++ b/mobile/source/helpers/dalianpay/library/Crypt.php
@@ -57,8 +57,8 @@ class Crypt
 		// 升序排列
 		ksort($data);
 		// 转字符串
-		// $pre_sign_str = http_build_query($data);
-		$pre_sign_str = $data . '';
+		$pre_sign_str = http_build_query($data,null,'&');
+		// $pre_sign_str = $data . '';
 		echo "[pre_sign_str(jiao yi message)]: {$pre_sign_str}";
 		// die();